Manganite is an ore/mineral of
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Pyrolusite is an ore/mineral of ___________.
Which was not produced by volcanic outgassing?
Which gas is released when water is added to bleaching powder?
Benzene is ______ in ethyl alcohol.
Which of the following elements has the lowest melting point?
Aromatic hydrocarbons contain at least _____ benzene like ring in their molecules.
What chemical is injected into a person's body when an ant bites?
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